• Buy with confidence.

    Hassle Free 10 Year Warranty

  • Built-In Fire Suppression

    Stop thermal runaway. Before ignition.

  • Bluetooth Enabled BMS

    Live Battery Data. Zero Guesswork.

  • High Performance BMS

    Power to get the job done.

  • Cold Weather Protection

    Self-Heating Lithium Batteries

  • Canbus / RS485 Communication

    Easily connect to OEM Equipment

We make lithium conversions simple.

Real Product Demos, Customer Reveiws, Installs and more…

Start your Engines!

Rev-up your Classic ride with Fleet lithium. Shed up to 60 lb of dead lead while maintaining that classic look under the hood. This is the last battery replacement you'll ever need in your hot rod, race car or classic car!

Why choose Fleet Lithium?

Explore the innovative features that make our product the ultimate choice for performance and reliability.

Power you can Trust.

Other lithium battery manufacturers seal their packs shut—glued tight to hide shortcuts and cheap components. Not Fleet Lithium. We proudly show off the superior quality and craftsmanship inside every battery. From our 300-amp NexGen smart BMS and active cell balancing, to our built-in automatic fire suppression, Fleet Lithium has nothing to hide and everything to prove. See the difference real American innovation makes.